Based on proportions identified by Vitruvius, the drawing shows a man where the arm span is equal to the height, giving an Ape Index of 1.
Ape | Science Citation Index | Human Development Index | Roud Folk Song Index | Index Ventures | The Hairy Ape | index | ape | Index term | Index on Censorship | Index Librorum Prohibitorum | The Naked Ape | LuxX Index | Index (publishing) | Index (database) | Index | FTSE 250 Index | Cook Partisan Voting Index | AEX index | A Certain Magical Index | The Ape Of Naples | Stock market index | stock market index | Miller index | index.hu | Gunning fog index | Going Ape! | Bribe Payers Index | Ape Action Africa | APE |